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13/11/2026
Zero-Day Initiative

ZDI-26-1004: Linux Kernel KSMBD Request Buffer Use of Uninitialized Resource Information Disclosure Vulnerability

by Deepanshu Jha
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Linux Kernel KSMBD. Authentication is not required to exploit this vulnerability. However, only systems with ksmbd enabled are vulnerable. The ZDI has assigned a CVSS rating of 6.3.
  • Next ZDI-26-1005: Linux Kernel eBPF Race Condition Local Privilege Escalation Vulnerability
  • Previous ZDI-26-1003: Linux Kernel ksmbd smb_inherit_dacl Out-Of-Bounds Read Information Disclosure Vulnerability

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